Machine for operating upon shoes



1932- R. H. LAWSON 1,839,852

MACHINE FOR OPERATING UPON SHOES Fi led Feb. 4,1926 12 Sheets-Sheet 1 va u Y K F Figll.

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Filed Feb 4, 1926 12 Sheets-Sheet 2 Jan. 5, 1932. R H. LAWSON MACHINEFOR OPERATING UPON SHOES 12 Sheets-Sheet 4 Filed Feb. 4, 1926 WvzMm 3 2%5% AZWM .lan. 5, 1932. R. H. LAWSON v 1,839,852

MACHINE FOR OPERATING UPON SHOES Filed Feb. 4, 1926 12 Sheets-Sheet 5ziL Jan. 5, .1932. R. H. LAWSON MACHINE FOR OPERATING UPON SHOES FiledFeb. 4, 1926 l2-Sheets-Sheet 6 Jan. 5, 1932. R. H. LAWSON 1,839,852

MACHINE FOR OPERATING UPON SHOES Filed Feb. 4, 1926 12 Sheets-Sheet 'rJan. 5, 1932. R. H. LAWSON MACHINE FOR OPERATING UPON SHOES Filed Feb.4, 1926 12 Sheets-Sheet 8 Jan. 5, 1932. R. H. LAWSON MACHINE FOROPERATING UPON SHOES Filed Feb. 4, 1926 12 Sheets-Sheet 9 Jan. 5, 1932.-R. H. LAWSON 1,839,852

MACHINE FOR OPERATING UPON SHOES Filed Feb. 4, 1926 12 Sheets-Sheet llJan. 5, 1932. R. H. LAWSON 1,839,852

MACHINE FOR OPERATING UPON SHOES Filed Feb. 4, 1926 12 Sheets-Sheet 12Patented Jan. 5, 1932 rates r risc' Pars ROBERT LAWSON, OF BEVERLY,ABEASSACHUSETTS, AS SIG-N OR- T UNITED SHOE ELA- CHINERY CORIORATLON, OFFATE-RS013, NEW JERSEY, A CORPORATION OF NEW.

JERSEY MACHINE IEOIEt QPERATING UPON SHOES Application filed FebruaryThe present invention relates to machines for operating upon shoes,being herein illustrated as embodied in an apparatus for butting ortrimming the ends of a w'elt'adiacent to the breast-line of a heel whichis to be attached and for effecting the attachment of such heel.

An object of the invention is to furnish an effective machine in whichvarious operations are successively performed withoutthe intervention ofan operator, other than the supplying of the work to the machine and itsremoval when completed. When the welt is to be operated upon, orprepared for co-operation with a heel, this is done on a support at anoperating position, after which the support travels to another position,where a further operation, as the attachment of a heel, is carried on.Thisprocedure may advantageously be performed by the use of a rotatableturret to transfer the work from position to position, the supportstaking the form of jacks mounted upon the turret, so there is one ateach operating position. The trim ming action is obtained in the presentinstance by a cutter movable transversely ot the pathot revolution ofthe support. or not the Welt is to be operated upon, the

traveling work-support preferably has at-- taching mechanism, asnail-driving units, movable with it. These units may be operated at oneposition to cause the attachment of a heel-portion, as a base,- whileanother heel-portion, asa top-lift, maybe attached at a succeedingposition by mechanism situated thereat.

Since nails or other fastenings are preferably driven into the work uponthe traveling support at a plurality of operating positions,

# it is a further object of my invention to emciently accomplish their.delivery. "To this end, I utilize means common to such plural positionsfor supplying thereto'thefdesired fastenings. In the present embodimentof the invention, the supply atone position is to the support, while atanother it is to inserting mechanism located at the position. In oneinstance, the delivery-may be under the control of the operator, anotherdelivery 3 beinggoverned by the machine. in its operlVhether 4, 1926.Serial No. "86,073.

.ation. Reversal of the fastenings preferably occurs dur ng delivery atone position.

- Because of the automatic character of the providing said support witha plurality of such positioning devices as projections arranged to entercorresponding openings in the portions. To this positioning means theportions are presented at different operating ositions,.and are held inpredetermined relation to the support and to each other until theoperations have been completed. I

Another object of the invention is to furnish simple and reliable meansfor supplying worlrportions for the operations upon them. As hereindisclosed, these p0rtions,'as a heelbase'and a top-lift, are applied byan operator at one position to a holder traveling with the support, fromwhich holder thework-portions are received and presented to the support,which may also havehad a work-portion applied to it by the operator. Thereceiving and presenting means is preferably a portion offasteninginserting mechanism, and may act at plural positions, as thoseat which the heel-base and top-lift are respectively attached.Mosteliectively, a holder acts as a support for both thesework-portions, and, to permit this, is movable in the operation of themachine.

In such operations as the attachment of heels by tastenings driven fromthe inside of shoes, it is desired to locate the fastenings as toolpreferably consisting of an integral member movable longitudinally ofthe passage. Because of its form, he carrier may be forced against theinterior of the counterportion of the shoe under the influence of thedriver-movement, yet will insure the proper direction of insertion ofthefastenings which it contains. The flexibility of the driving toolallows it to conform to the contour-of the passage. By reducing thediameter of this driver adjacent to its operating extremity, I compel itto maintain a constant I it offers a minimum resistance to its actuatingmember or plunger and with little tendency to deteriorate.

A further object of my invention isto furnish means cooperating with thesupport to bring about the attachment to the supported work of portionswhichare'to complete it. In the attachment of a heel-base, for example,in connection with which the nails are driven from a jack or support ata particular position to which it travels, there is at this position apressure member, against which, as an abutment, the driving is done. Ialso may employ at this position a driver actuat 1, which will serve aplurality of acks successively arriving at the position, as under theinfluence of a rotatable turret. In lift-attachment, pressure ispreferably applied to the Work by movement of a head cooperating withthe supporting jack, a fastening-inserting driver being movable with thehead and there being continued movement of one of the elementsindependently of theother. The head thus holds the work under pressurewhile the driver or drivers advance to insert the fastenings. Ipreferably cause certain of the driver-units, which are mounted at oneend to move upon the head, to be constantly forced inwardly at theirworkengaging ends, so they may held between them a heel-lift ready forits attachment.

As the lifts and bases, in accordance with my invention, are deliveredto the nailing head by a traveling holder, a path must be furnished bywhich the lifts may arrive between the engaging portions of thedriver-units. For this purpose, I arrange a portion of thefastening-inserting means, shown as consisting of a tube containing adriver, to be moved out of the path of the heel-portion, while other ofsuch units remain in position for engagement with the heel-portion, toretain it as it is removed from its holder by contact with some suchmeans as an abutment carried by the head. The movement of the drivertubeto clear the path of the heel-portion may be under the influence of thedriving action as a result of frictional connection between the driverand tube. The engagement of the other inserting units withtheheel-portion may be brought about by spring-pressure.

Still another object of the invention is to insure that the shoe-partswhich are to be operated upon shall be in place before the machine isstarted. This I achieve by mak- 7 rar relation in the containingpassage, so that ing effective connection between the operatingmechanism or mechanisms of the apparatus and the actuating meanstherefor, dependent upon the presence of the shoe-p arts upon or intheir supports or holders. I preferto have a locking membercorresponding to each of the parts which are to govern the starting,these members acting to prevent movement of an element included in theconmoval of the work, and for this purpose there is provided meansmovable against the work to free it. I may utilize a member whichcontrols the operation of the machine,as a result of the application ofwork-portions to the support. More specifically, in a turret type ofmachine, each traveling jack may have movable in it one or more members,such as rods, which, in the rotation of the turret,

are forced against the heel-seat of a jacked shoe to releaseit fromprojections or other locating devices. One of the-many embodiments whichmy invention may assume is illustrated in the accompanying drawings, inwhich Fig. 1 is a top plan view of my improved machine, portions beingbroken away;

Fig.2 is a horizontal section taken just above the jacks Fig. 3 showsthe machine in front elevation, with parts broken away;

Fig. 4c is a broken side elevation looking from the right in Fig. 3;

Fig. 5 shows a jack in side elevation, together with the more closelyassociated elements at the base-nailing station;

Fig. 6 v is a vertical transverse section through the base andlift-holder which cooperates with the jack;

Fig. 7 is a section through the ack, taken on the line VIIVII of Fig. 5;

Fig. 8 illustrates, in perspective, a portion of the mechanism forlocking and unlocking the starting treadle of the machine;

Fig. 9 further illustrates the locking and unlocking mechanism,beingatransverse section through the driving mechanism, taken at one side ofthe clutch;

Fig. 10 shows the clutch enlarged and viewed similarly to Fig. 9,parts-being broken away;

I Figs. 11 and 12 are sectional details on the lines XI-XI andXII,XII,respectively,

of Fig.4.; 1

Fig. 13 is an enlarged front elevation of the nail-loading mechanism atthe work-re nism at the workereceiving station;

Fig. 17 illustrates, in broken perspective,

co-operating portions of the nail-disks-of Fig. 16;

Fig. 18 is a horizontal section taken just above the shutter of Fig. 16;

Fig. 19 shows, in broken side elevation, the lift-nailing mechanism atthe lift-attaching station Fig. 20 is a broken side elevation of themechanism of Fig. 19, looking from the right;

Fig. 21 is a broken side elevation of the distril uting mechanism at theliftattaching station;

Fig. 22 is a horizontal section taken just above the nail-receivinganddelivering disk of Fig. 21;

Fig. 23 shows said disk and closely associated elements in perspective;and

Fig. 24 is a sectional detail taken in the same plane as Fig. 22, withthe elements in different relation.

The frame of the apparatus includes a base furnishing an enclosure aswell as a support for the chief driving and actuating elements, it beinggenerally in the form of a vertical cylinder provided with a rearwardextension 12, from which projects upwardly and forwardly a frame-arm 14(Fig. 4) overhanging the base. Mounted vertically at the center of thebase 10 and held at'its upper extremity in the frame-arm is a shaft orspindle 16, about which rotates a carrier-turret consisting of ahorizontal plate 18. This plate moves at its under side, withslight'clearance, above portions of the base, which are separated fromone another by substantially ninety degrees. These base-portions givesupport for the turret under the pressures of the various operatingmechanisms, the yield of the plate 18 bringing it into'contact with saidportions to positively resist further displacement.

Mounted upon the upper face of the turret-plate are four jacks orworn-supports 22 situated ninety degrees apart and caused to revolve inthe rotation of theturret to four successive stations A, 13, (land D,and to stop for a predetermined time each station to permit differentoperations to be formedupon a acked'shoe. Atstation A, the work mayinitially be applied to the jack and to holding elements whichco-operate with it, and said work removed at the completion of a cycleof the machine; at station B, the ends of a welt associated with anupper placed upon the jack at station A may be butted or trimmed,together with the adjacent corners of the outsole; at station C, aheel-base may be attached to the.heel-seat-portion of the shoe upon thejack; while at station D, a lift of rubber or other material may be secured to the base. As best shown in Fig. 4, power is applied to theturret from a motor situated at the rear of the frame, which motordrives, through reduction-gearing 26 and a clutch 27, preferably of theHorton type, a shaft 28 journaled near the lower portion of the base andextending from front to rear thereof. Fixed upon the forward extremityof the shaft 28 is an arm 30 having a roll 32 co-operating with a Genevagear 34 (Fig. 3) fast upon a shaft 36 rotatable in the base above theshaft 28. Bevel-gearing 38 joints the Geneva gear to the turret 18. Byeach entrance of the roll 32 into one of four radial slots 40, spacedequally about the Geneva gear 34, said gear is turned through ninetydegrees, and the turret-plate 18 correspondingly rotated. This effectsthe travel of each jack from one station to the next.

To insure the correct positioning of the jacks at the stations and theirretention throughout the operations to be performed, locking andregistering mechanism is provided. Seperat-ing from one another aboutthe periphery of the turret, in the same angular relation as the jacks,are four conical recesses 42 (Fig. 2). Mounted to slide horizonspindlehaving at its top an arm 52 joined to the bar. At the bottom of thespindle is secured an arm 54, upon which is a roll 55 contacting with acam-face 56 upon a disk 58 fast upon the rear extremity of the shaft 28.The contour of the cam is such that, during the rotation of the turretby the Geneva gear, the bar will be held clear of the recesses 42. Whenthe movement of the-turret stops, the cam allows the spring 48 to drawthe end 46 of thebar into the recess at that time alined with it. Thisengagement not only holds the turret against displacement, but also, bythe co-operation of the inclined surfaces upon the bar and plate-edge,brings the elements carried by the turret into exactly the properrelation tothe mechanisms at each of the operating stations. 7

One'of the four jacks 22 carried by the turret is best illustrated inFigs. 5 and 7 of the drawings.

Seated in each of four recesses r i Y are far enough below the tops ofthe tubes to inzthe turret-plate is a jack-body 60, the upper end ofwhich is formed to fit the counter and heel-seat-portion of a shoe. invertical grooves along the body, eight of these grooves being shownineach jack (Fig. 2), normally rest carrier members furnished by driverandnail-tubes 62, each of these units beingpivot shall not emerge from theperiphery of the heel, even if their points of insertion are close tothe rand-crease. Eaten. g longitudinally of each tube is a passage 66,the contour of which corresponds'to that of the tube,

- just described. In each of the tube-passages operates a driver orfastening-insert 1g member 68 consistin of an inte ral 'lQXlblG rod Kidconnected at its lower end by a universal joint 70 to a plunger 72sliding in a passage formed ing portion it of the turret. Like L aassa'e G6 the driver is nreferably cylindrical in transverse section, eX-

below the upper extremity or head.

Here too driver is recessed, being substantially reduced in thickness byhaving a portion cut away at one side at 76. This increases theflexibility of the driver, to permit it to follow the curvature of thetube, and causes it to rotate if displaced angularly about its universaljoint from the position shown in Fig. 7, the reduced portion tending toremain always toward the axis of curvature. As a result of this,the areaof greatest pressure, which is at the outside of the tube, receives thecontact of an unbroken surface; there is no tendency to score thetube-wall by the edges of the reduced portion; the resistance to bendingis minimized; and there is little breakage of drivers because of thisbending. Normally, the drivers are held lowered, as by the weight of theelements, particularly the plunger,'so that the upper ends of thedrivers 7 leave space in the passages for thereception of the nails llto be driven. These nailsrest with their heads upon the upperextremities of the drivers, the contact-faces lying at such angles tothe axes of the drivers that the nails will be inserted in the desireddirections.

Rising from the upper surface of each.

jack are work-locating pins or projections 78 and 80 (Fig. thoughanother number than two might be employed, these being spaced from oneanother alongthe long' udinal axis of a shoe when supported upon thejack. A; shoe S to be operated'upon is shown as having a short sole 8,and throiighthe heel-seat-pOrtion of the insole are two openingsarranged to receive the pins when the shoe is correctly placed upon thejack for the operations upon it. The inner opening comes just within theoutsole s, so that the correct relation between this and the attachedheel is insured. A heel-base Hand a top-lift L,the latter beingpreferably of yieldable material, as rubber, contain openings alsocorresponding to the spacing of the pins. The base-openings passentirely through this shoe-portion, so that the pins 7 8 and 80 mayproject beyond it and enter the lift-openings, which terminate short ofthe tread-surface. Because of the engagement of the ack-pins with theinsole, outsole, base and top-lift, all these portions are assembled incorrect and unvarying relation without the necessity for specialconsideration on the part of the operator. Each of the jack-pinsis-shownas provided with a tapered upper end to facilitate theapplication of the work-portions, and is yieldable downwardly against aspring 82 seated in a recess in the jack-top beneath the pin. Thisallows said pin to adapt itself to the work 88 operating in a horizontalpassage in the rod 86 and in an alined passage in the jackbody. Theinner ball also normally extends into a slight depression in the rod 84.A plunger 90, backed by a spring 92, is contained in the body-recess,urging both balls into the passage in the rod 86, with the-innerball incontact with the rod 84. These rods act both to control the starting ofthe machine and to free the shoe from the jack after the operations uponsaid shoe have been completed. The action in both cases will later bedeveloped fully.

Carried upon the turret, in advance of each jack, is ,a combined heel orbase and top-lift-holdcr (see particularly Figs. 2, 5 and 6), upon whichthese shoe-bottom parts are temporarily supported for later presentationto a jacked shoe. The body 94 of this holder is pivoted upon a base 96fined to the upper face of the turret. It is bifurcated, having one arm98 with an upper end sur face, upon which may restthe heel-base H, andthe other arm 100 with a surface to receive the top-lift L. At the rearof each of the receiving surfaces is a yieldable abutment including anarm 102 (Fig. 9) pivoted Each of these rods upon the vertical forwardface of the holder and carrying a contact-roll 1041 projecting above thereceiving surface. A'spring 106 urges the lever inwardly toward-theholder, but permits it to yield whenthe proper force is applied.Fulcrumed at opposite sides of the receiving'surface of eachholder-portion are bell-crank levers 108 having engaging surfaces 110for grasping the shoe-portions which are to be held. Springs 112,ext-ending through openings just below the receiving surfaces of theholder-portions, draw the engaging surfaces toward one another, so thatthey will be adapted to clamp between them heel-bases and lifts ofdifferent widths, and to yield for the release of these elements. Thelower arms of the bell-crank levers have formed upon them gear-segments114, which mesh with opposite teeth upon a rack-bar 116 movable within achamber in the holder. Links 118 ointhe rack-bars to the oppositeextremities of a floating lever 120 articulated at its center to a slide122 guided in the holder-body and provided near its lower end withrack-teeth 12 1. Apinion 126, engaging the rack-teeth 12 1, is mountedto turn at the bottom of the body 941, and imparts rotation to a gear128 co-operating with rack-teeth 130 upon a contact-slide 132 movablevertically in the turret. This slide 132 acts with the rods 84- and 86to govern the engagement of the driving mechanism of the machine in amanner to be described.

Since, in the present embodiment of the invention, the heel-attachmentis to be by nails driven from within shoes through the heel-seats, suchnails must be supplied to the passages 66 before a shoe is jacked. Thismay be effected by a distributing mechanism and a loading mechanism,shown in the assembly views of Figs-1, 8 and 1, and in de tail in Figs.13 to 17, inclusive. The distributor, which may also supply thelift-attaching nails at station D, is supported at one side of theframe-arm 14, and includes a nail-receptacle consisting of a rotatabledrum 1341 provided with a fixed end or head 136. The drum has a shaft138 journaled in the head and in a bracket 140. Nails may be supplied tothe drum through an open ing situated at the top of the head 136andnormally closed by a hinged cover 1 l1.- A slow movement of rotation isimparted to the drum, from a. motor 142 held upon a bracket 1 13 throu hs iral earin 14-1 driv- 7 D r; a

ing a shaft 1 1-6 carried in bearings transversely of the arm 1 andconnected to the distributor-shaft 138 by a chain of spurgcaring 148.About the interior of the drum is spaced the usual series of buckets150, by which the nails are raised from the mass at the bottom anddelivered upon an inclined receiving plate 152 attached to one side of araceway or nail-conveyor 153. The raceway is slotted to convey the nailsin a series,

side wall of the head 136. To prevent the nails from clogging in theraceway, there is shown as rotatable above it, upon a shaft 154, atoothed rake-wheel 155 driven by beltgearing 15. from'the shaft 146. Thedirection of rotation of the wheel 155 adjacent to the raceway isupward, causing its teeth to engage and separate the descendingnailheads, and thus free them from one another for their downwardtravel.

The raceway 153 terminates against the vertical face of a nail-receivingand reversing disk 156 (Fig. 16),. This disk rotates with a horizontalshaft 158 upon a bracket 160 (Fig. 1 1), which is mounted at the forwardextremity of the frame-arm 14. Bevel-gearing 162 joins the shaft 158to avertical tubular shaft 164 journaled in a bracket 166 rising from theframe-arm. Bevel gearing 168 connects the shaft 164 to a horizontalshaft 170, turning. in a bracket-arm 172 and in the forward extremity ofthe bracket 140. A jaw-clutch 17 1 allows the shaft 170, and thereforethe reversing disk, to be driven under the control of the loadingmechanism, the driving member of said clutch receiving power from theshaft of the distributordrum by way of a chain ofspur-gearing 176' (Fig.1). A casing178 surrounds the disk 156, the raceway passing through theinner head of said casing and terminating opposite the upper portion ofthe vertical inner diskface; Arranged radially in this face of the disk,to be brought into registration with the extremity of the raceway in therotation of said disk, are nail-receiving recesses 180, nine of thesebeing provided in the present embodiment of the invention. Movable ineach recess is a plunger or ejecting member 181 (Figs. 16 and 17), actedupon by a spring 182 situated between the plunger and a coverplateattached to the outer face of the disk. Each of the plungershas anangular projection 183 extending outwardly over an annular cam-track 184situated between the periphery of the disk and the interior of thecasing. When any one of the recesses is alined'with the end of theraceway 153, so that it' may receive nails therefrom, the plunger 181'is held back by the engagement of its projection with the cam-track.This relation is maintained until the recess reaches the deliveringposition, which is removed from the end of the raceway by substantiallydegrees. Here there is an abrupt fall in the cam, releasing the plungerand al-- lowing it to be sharply thrown toward the inner face of thedisk by its'spring to eject the nail. Individual delivery of the nailsfrom the raceway to the successive recesses is insured by aseparator-bar 185' (Fig. 13)

sliding in a horizontal slot at the extremity of the raceway, and beingunitedto a bellcranklever 186 fulcrumed upon'the casing 178. A'spring187 exerts its tension upon an outer arm of the lever toholdtheseparatorbar normally across the raceway, said bar being removed 'torelease the terminal nail by a contact member 188 projecting from thelever and resting against a cam 189 upon the shaft 158. There is aprojection upon this cam for each of the recesses in the disk 156. Thesecam projections act to withdraw the separator-bar when each recess isopposite the raceway, the bar then being released by the projection andpermitted to be drawn by its spring sharply between the terminal nailand that succeeding it, so that the latter is not only retained, but theformer positively forced into the recess in the disk by the contact ofthe bar.

- Mounted upon the casing 178 is a casing 190, enclosing a delivery-disk192 rotatable with the shaft 164. The periphery of this disk-containsvertical recesses 194 equal in number to those 'of the disk 156 anduniformiy spaced so thatpairs of recesses in the two disks may besuccessively brought into registration. Against the under face of thedisk 192' is held a nail-retaining and releasing shutter-plate 196fastened upon a spindle 198 rotatable within the tubular shaft 164.circular series of delivery-openings 200 about the outer portion of theshutter may be alined with the recesses 194, but are normally held outof registration-by a spring 202 contained in an elongated opening 204 inthe disk and extending between apair of pins 206, 206, one of whichdepends from the disk and the other rises from the'shutter. A pin 208also projects downwardly from the disk 192 into a'generallysegmentalslot 210 in the shutter. The length of the slot 210 is such asto permit; the desired opening and closing movement of the shutter, theright-hand end of the slot, as viewed in Fig. 18ofthe drawings,furnishing a stop-surface, whichlilnits the rotation of the shutterunder the action of the spring202. Theshutter is operated against thetension of the spring 202'through the agency of a'cam-s'lot 212 formedin the side of the spindlell98 and acted upon by the loading device in amanner explained below.

The brackets 160 and 166jarejoined at their lower'ends by a cylindricalguide 214 (Figs. Band 14) for a loader-block 216,

which causes and directs the delivery of nails from thedistributingmechanism to the acks. Connecting the distributing and loadingmechanisms are tubes 218 terminating at their upper extremities inopenings in a fixed plate-220, these openings being alined with therecesses 194' and shutter-openings 200 when these are in the deliveringposition. The lower ends of the tubes terminate in openings in afoot-plate 222 extending across the top of the guide-cylinder. From thefootplate-openings depend verticaltubes 224 entering nail-tubes 226arranged in openings in the loader-block to correspond to the normalposition of the driver-tubes 62 of the jacks. The lower portions of thetubes 226 project somewhat below the under "face of the loader-block, toenable them to project into the upper ends of the driver-tubes and sorender more certain the delivery of nails thereto. In the normal raisedposition of the loader, it may be held latched by .a springpresseddetent 228 associated with a handle 230 secured at the lower frontportion of the block 216, the detent, when'the loader-block is raised,engaging a lug 232 upon the front of the casing 214. Preferably, theloader-f block is counter-weighted at 234 so that it will tend toremain'wherever it is moved vertically, and will'requir-e little efforton the part of the operator for its actuation. Upon the loader-block isa projection 236 entering the cam-slot 212. In the upward and downwardtravel of the loader-block, the projection 286 occupies a verticalportion of the cam-slot, so that no efl'ect is produced upon the spindle198. But when the tips of the loader-block-tubes are on the point ofentering the passages 66 of the jack-tubes, the projection reaches thecam-portion of the slot, causing the rotation of the spindle and shutteragainst the tension of the spring'202. This brings the shutter-openingsinto alinement with the recesses in the delivery-disk, allowing thenails to be discharged and to pass through the tubes 218, 224 and 226into the jack-passages, where they are held upon the drivers for theinserting operation. Extending circumferentially of the spindle, at theupper extremity of the cam-slot 212, is a groove 238. In this, theprojection 286 is permitted to turn during the nail-collectingv rotationof the delivery-disk 192.

To effect control of the distributing mechanism by the loader, there isfulcrumed at the top of the loader-guide 214 a lever 240, forked at itsupper extremity to engage the bodily movable member of the clutch 17 4,this member being splined upon the shaft 170. At an intermediate pointbetween its fulcrum and the clutch, thelever 240 carries a: roll 242arranged to enter a depression 244 (Fig. 16) in a flange 246 upon thelower portion of the delivery-disk. l/Vhen the roll 242 is held in thedisk-depression under the influence of a spring 248, the clutch ismaintained disengaged, and the disk locked in the proper position toreceive nails from the disk 156. hen the roll'rides upon the peripheryof the flange, the clutch is held in engagement for one rotation of thedisk, or until the depression 244 again reaches the roll, when theclutch is disengaged. Pivoted upon-an up ward extension 250 oftheloader-block is a dog 252, held by a spring 254 with its end extendingsubstantially horizontally. This end of the dog is arranged tocontactwith the lever 240 above its fulcrum, andto yield when the loaderis moved down to make the nail delivery. At such time, the lever 240,and therefore the clutch, is unaffected. Upon the upward idle movementof the loader, the dog engages an inclined edge 256 of the lever,swinging this to the right 13) until the roll 242 is removed from thedisk-depression and the clutch is engaged.

To trace a complete cycle of the distributing and loading mechanisms,tne operator" draws down the loader-block 216 by its handle 230, and, asthe tubes 226 reach the V drivei'passages of the jack, the cam-groove212 in the shutter-spindle produces alinement of the openings 200 in theshutter with the recesses 19% of the delivering disk. In these recessesa load of nails is held as a result of the previous operation, andthereupon falls through the connecting tubes to the driverpassages.lVhen the operator again raises the loader-block to its normal position,the projection 252, acting upon the lever 240, unlocks the disk 192, andtherefore the disk 156 which is geared to it, by the removal of the roll242 from the depression 244, and effects the engagement of the clutch174. Under the control of the raised portion of the disk-flange 246, thedisks of the distributor perform a complete rotation. The separator-bar185,

ctuated by the cam 189, picks off a nail from the end of the racewaywhen each of the successive recesses 180 is alined with said race way.At this time, the cam-track 1.84 holds back the plungerlSl in thisparticular recess.

lVhen each recess which has thus received nail has moved through 180degrees, which time the contained nail has been inverted and is inregistration with one of the recesses 19% of the delivering disk, thecam-track releases the plunger, which is forced inwardly by its springto eject the nail into the recess 1%. After the collection of thecomplete load of nails has been made by a. full rotation of the disk192, the depression 244 again reaches the roll 242, which enters it,disengaging the clutch and locking the disks until the succeeding cycle.

Before starting the operation of the turret,

which is followed, after 90 degrees .of rotation, by the action of theoperating mechanisms at stations B, C and D, it is desired that all thework-portions shall be properly posi tinned; that is, that there shallbe a load of nails in the j rick-passages 66, a shoeupon the jack, and abase and a lift in the holder-portions 98 and 100, respective To insurethis, a lock is provided for the sta; 1g mechanism, which is capable ofrelease only after each of the four actions just enumerated has. beenperformed. The single'rotation of the ma n shaft 28, under the influenceof the clutch 27, this clutch or connecting means including thecustomary startingand stopping lever 258 (Figs. 9 and 10), is governedby a treadlelever 260 moved to initiate the engagement of the clutch. Asis most clearly illu atcd in Fig. 8, the lever, when in itsclutch-disengaging position, has, contacting with a lug 262 formed uponit, three locking arms 26%, 266 and 268. The alinement of one or more ofthese arms with the lug will prevent move ment of the lever 258.,Consequently, all must be properly set before the machine can bestarted, and the performance of all the shoe-portionsapplying operationsis necessary to permit such starting. lVhen the loader-block 216 islowered to make the naildeliver 1 to the jack, its bottom-surface, acentto the opening receiving the jac'i-rod 86, strikes the top of theack-rod 8d, releasing it from the frictional engagement of the'innerretaining ball 88 and depressing it. Beneath the turret is fulcrumed abell-crank lever 270, appearing in Fig. 9.

(or shown in Fig. 5. A eneral y horizontal arm of each of theseleversenters a depression in the enlarged lower extremity of thecorresponding rod. The rod 86 is pressed down by the engagement ofthe-insole of the shoe S when this is forced upon the jack over the pins78 and 80.- The levers 270 and 272, each through an individual chain ofelements consisting of a horizontally movable slide 274 (Fig. 5)bell-crank lever 27 6 (Fig. 8), against which the slide strikes, and a.vertical link 2'78, respectively lower arms 280 and 282. The arm 280 isfast upon a shaft 28%, to which is also fixed the locking arm 264.Surrounding this shaft is sleeve 286 having secured to it the arms 282and 266. Consequently, the depression of the arms 280 and 282correspondingly lowers thelocking arms 264: and 266, against the tensionof springs 288, clear of the lug 262. Insertion of a base and liftbetween the levers 108 of the holder-portions 98 and 100, respectively,in each instance separates these arms and depresses the slide 116. As aresult of this, the lever 120 first fulcrums upon one of the links 118,and then upon the other, lowering the slide 132 in two steps. Vhen theturret is stopped and indexed the bar 44., the slide 132 of the base andlift-holders, as a result of the advance of the jack from station A,will be vertically alined with a contact-surface 290 upon the enlargedend of an arm 292 (Figs. 2, 8 and 9), this arm being secured to one or;:emity of a shaft 294 rotatable in the base just below the turret.Bevel-gearing 296 connects the shaft 294 to a shaft 298 extending fromfront to rear of the haseand having fast upon it an arm 300. A link 302unites this m with an arm 3% integral with the locking arm 268. Throughthe chain of elements just outlined, the application of either thebaseor lift to its holder moves the arm 26S partly down the surface of thelug 262, while the insertion of the other heel-portion continues thisdown- A similar lever 2. 2 co'-- operates with the ack-rod 86, thisbeing betward travel of the arm until, like the arms 2G4 and 266, it isbelow the plane the lug.

The lever 258 is now fully freed, and may be moved by the treadle 260 tostart the machine. If an operator mistakenly applies the base and liftto both the holder which is at the rear of the jack at station A and tothe proper holder which is in advance, the completion of theturret-movement through 90 degrees will bring the slide 132 of thissecond holder to the arm 292, which has already been acted upon. Werethe end of the armportion carrying the contact-surface 290 vertical,thissecond lowered sli le would produce interference and breakage bystriking against it. I therefore provide an inclined end-surface 306, upwhich the sliderides and depresses the arm 292 to produce the desiredunlocking effect upon the arm 268.

I The jack, traveling from station A, stops beneath a pressure-headarranged to slide vertically in. a lateral extension of the frame-arm14, this extension being supper ed by an upright 310 from the base 10.

Fulcrumed at opposite sides of the head are bell-crank levers 312, 3l2,each carrying at ts lower extremity a knife 314 provided at its innerside with an upwardly and outwardly inclined cutting edge. .These knivesmove transversely of the path of revolution of the jacks, and theirrelation to each jacked shoe is such that, when the head is resting uponthe heel-seat-portion of said shoe, the knives will sever the ends ofthe welt .V (Fig. 5)

and the adjacent corners of the sole 5, and

thus prepare said welt for proper co-operation with the breast-portionof the heel to be attached. From the head 308 is an upwardly extendingtubular portion 316, whichis guided in the frame, and movable in thisportion 316 is an actuating plunger 318, which may also be tubular.Interposed between and Within the head-extension and the plunger ishelical spring 320, acting by its expansive i force to hold the plungernormally raised.

Joined to the upper extremity of the plunger is the overhanging'doublearm or yoke of a vertical rod 322 articulated at its lower end to alever 324 fulcrumed within the base. Arms 326, 326, projectinghorizontally from the plunger near the point of connection of the rod322 thereto, are united by links 328 to the upper arms of the bell-cranklevers 312.

At the inner extremity of the lever 324 is a roll 330 operating in acam-groove in the face of a disk 332 (Fig. 4) secured upon the shaft 28.i

The action of the mechanism at station E is as follows: After the turrethas stopped at this station the jack, with the shoe applied at stationA, the cam 332 draws down the rod 322, correspondingly depressing theplunger 318. This at first carries with it, through the spring 320, thehead 308, without compressing the spring. The downward movementcontinues until the pressure-surface of the head comes in contact withthe heel-seat-portion of the shoe, the locating pins 78 and 80 enteringvertical openings in the pressure-head. Now, the travel of the rodcontinuing, the spring 320 is compressed, holding the shoe firmly uponthe jack. At the same time, the arms 326, still descending, act throughthe links 328 to oscillate the bellcrank levers 312, carrying the knives314 across the heel-seat, and severing the projecting ends of the weltat both sides of the shoe. The movement of the rod 322 is thereuponreversed, first. restoring the knives to their normal position, and thenelevating the head 308 to free the jacked shoe, the butting of the weltof which has been completed.

Station C has a pressure-head 334 forming a part of the base-nailingmechanism and carried at the bottom of a guide-rod 336 (Fig. 4) movablevertically in the frame-arm 14. Pivoted upon the head, at the rear,considered with reference tothe advance-of the jack,

and extending at opposite sides below the pressure-face, are clampingmembers 338,338 (Fig. 5), which are drawn toward each other by a spring340 connecting the members. Between and at the rear of the clampingmembers is an abutment-face 342 extending vertically below thepressure-face of the head. As the holder 94 belonging to the jacktraveling from station B approaches station C, theheelholding portion 98is in a vertical position, with the base H grasped between the surfaces110 and held at such a height and relation radially of the turret'thatit will be carried just beneath the head 334 and between the clamps 338.It contacts with the curved forward ends of these clamps, causingthem toyield against the tension of the spring 340; and when the breast-edge ofthe heel contacts with the abutmenflsurface 342, the circumferentialmovement of the base with the turret is checked, and the holder-portion98 travels on, leaving the base grasped between the clamps, and withvertical positioning openings in it correctly alined with the locatingpins 7 8 and 80 of the jack. Asthis occurs, the abutment-roll-104 of thebaseholder yields, swinging down so that it is below thesupportingsurface of the holder, and is retained there by contact withthe heel-seat-end of the clamped heel until the holder has passed thepressure-head, when it resumes its normal relation. Connected to the 1346 and an abutment-plug 352 threaded into.

the top of the lever. A screw 354 is carried by the lever beneath theblock 346, and by adjustment of this screw and of the plug 352,

